Improvement in sash-balances



M. J. TRESCH 8v H. F. UREY- Sash Balance No. 205,514. Ptented July2,1878.-

@z /zw WITJVESSES: @W 9% UNITED STATES PATENT OFFICE.

MICHAEL J. TRESCH AND HENRY F. UREY, OF EDENSBURG, PA.

IMPROVEMENT IN SASH-BALANCES'.

Specification forming part of Letters Patent No. 205,514, at 2, 1578; lll filed March 21, 1878.

To all whom it may concern:

Be it known that we, MICHAEL J. TRESOH and HENRY F. UREY, of Edensburg,in the county of Clarion and State of Pennsylvania, have inventedcertain new and useful Improvements in Sash-Balances for Window- Frames;and we do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

Our invention relates to that class of sashbalances in which one sash ismade to balance the other; and the nature of our invention consist inthe peculiar construction of the device over which the cord passes fromone sash to the other, in the manner of connecting the cord adjustablyto the lower sash, and in the construction and combination of parts, aswill be hereinafter more fully set forth.

Figure l is a side elevation of a windowframe with sash, &c., embodyingour invention the side of the frame being removed to expose the edges ofthe sash. Fig. 2 is a rear or inside View of the cord-pulley. Fig. 3 isa transverse section of the same. Fig. 4 is a plan view of the end ofthe lower sash, and Fig. 5 is a front or outside View of the cordpulley,disk, or sheath.

A represents the window frame or casing. B is the upper, and O thelower, sash. The two sashes B and O are grooved upon the edges toreceive the balancing-cords a. Near the lower end, in each edge of theupper sash B, is inserted a metal block or plate, I), having a centralperforation, through which the cord a is passed, and fastened by meansof a knot or otherwise on the under side of said plate. The other end ofthe cord a is connected to the lower sash O in the following manner: Inthe groove in the edge of this sash is placed a metal bar, D, having aseries of notches, w w, in its front edge, and its upper end providedwith a knob or handle, D. To the lower end of the bar D is permanentlyfastened a perforated lug, 6, through which the end of the cord a ispassed, and fastened on the under side thereof by a knot or otherwise.On the top of the sash O is fastened. a slotted plate, E, through whichthe bar 1) passes, and in a recess in the sash under said plate isarranged a hooked spring, h, which takes hold of the rear edge of thebar D, as shown in Fig. 4. This spring acts in a twofold manner-first,as a guide for the up-and-down movement of the bar D, preventing saidbar from moving outward in the slot, and, second, in acting as a lock inpressing the bar D forward, so that any one of its notches a: will catchon the edge of the metal of the slotted plate.

The guide over which the sash-cord passes from one sash to the other iscomposed of a circular disk or sheath, F, made of porcelain, and formedwith a central hole, f, for the passage of the fastening-screw, saidhole being countersunk in the outer face of the disk for the head of thescrew. A circular recess is made in the side of the window-frame aboutmidway of the travel of the upper sash, of sufficient size and depth toreceive the disk or sheath F and cause its outer face to be flush withthe inside of the frame.

In the disk or sheath F are made two apertures, i c, at equal distancesfrom the center, and diametrically opposite each other. These holes aremade on an upward slant from. the outer face inward, and they form thetermini of a semicircular recess or groove, 112, made on the inner sideat the top of the disk or sheath, having a semicircular projection, n,on the inner side of the disk, as shown in Figs. 1 and 2. The sash-cordpasses upward through one of the holes 1', over the projection n, anddownward through the other hole 2', as seen in Fig. 1. The disk orsheath F is fastened in such a manner that the two openings '6 i will beon direct lines with the grooves in the sashes.

The disk or sheath, being made of porcelain, can be manufactured cheaplyand economically, while it will not wear or rust and rot the cord, as isthe case with the metal devices now in use. On the under side one ormore recesses, I, may be made to make it still more light, if desired.

When the bars D D are pressed down in the position shown in Fig. l, thecords to will be just long enough to close both sashes and balance thesame, so that raising the one will lower the other sash. If desired tolower the upper sash without raising the lower one, the bars D D may bepulled upward more or less, which lengthens the cords, allowing theupper sash to drop down as far as desired, while the lower sash mayremain closed and fastened by the bolt on upper edge of said sash. Thetwo sashes are, however, balanced in whatever position the cords andbars may be placed.

The end of the cord can be secured to the sash B by a simple screw ornail, if cheapness is desired; but we prefer to use the metal block orplate I), as the cord can be more readily attached and detached, anddoes not disfigure and endanger the sash.

Having thus fully described our invention,

what we claim as new, and desire to secure by Letters Patent, is-

1. The porcelain disk or sheath F, formed with the central hole f, sideholes i i, circular groove m, and projection at, substantially as andfor the purpose set forth.

2. The combination of balance-sash cord at, fixed permanently to theupper sash B and adjustably to the lower sash O, with the porcelain diskor sheath F, constructed as described, as and for the purpose set forth.

8. The combination of the grooved sash C, the cord at, and the slidingbar D, provided with the lug e at or near its lower end, and a series ofnotches, a; m, in its edge, with the plate E, as and for the purposeherein set forth.

4. The hooked spring h, in combination with the notched bar D and plateE, substantially as set forth, and for the purpose named.

MICHAEL J. TRESCH. HENRY F. UREY. \Yi l nesses:

W. C. B. DAVIS, M. M. WILsON.

